13. Program Support Functions
13.24 Tool Center Point Control; G43.4/G43.5
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Programming coordinate system
The end position of each block looking from the programming coordinate system is specified in
the tool center point control mode. In the program, specify the position of the tool center point.
The programming coordinate system is a coordinate system used for the tool center point control,
and is specified either the table coordinate system (a coordinate which rotates together with a
workpiece) or the workpiece coordinate system by the parameter.
(1) Table coordinate system
When 0 is specified for the programming coordinate system selection parameter, the table
coordinate system, which is the valid workpiece coordinate system at that time fixed to the
table, is specified as the programming coordinate system. Table coordinate system rotates
along the table rotation and not the tool axis rotation. The subsequent X,Y,Z addresses are
considered to have been issued on the table coordinate system.
When a rotary axis movement is commanded in a block prior to G43.4/G43.5 command, the
angle generated by rotary axis movement is regarded as an initial setting at G43.4/G43.5
command.
(2) Workpiece coordinate system
When 1 is specified for the programming coordinate system selection parameter, the
programming coordinate system will be the valid workpiece coordinate system at that time.
The coordinate system in this case does not rotate along the table rotation. A linear movement
is carried out for the table (workpiece) when the subsequent X,Y,Z addresses are issued. The
end position looking from the workpiece coordinate system after table rotation is specified to
the X, Y and Z.